I'll see what I can do about it as adding a cock is harder than adding breasts because of some animations. But it's not impossible, it would just take more time and also restrictions, as in: some scenes can only happen if melo has a normal body and some if he has a hyper one, some characters wont want to do anything if he's hyper.
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And what about the temporary effect and permanent ones so that you can buy them in a futazone, temporary ones for opening temporary scenes Become few in some sex scenes or other temporary events, the same patch could be more expensive but safer, permanent ones can be put on a very expensive price tag that would motivate you to buy them, except for closing the rent or restoring health. But in any case, this is just a suggestion to add or change something always at your discretion, I wish you that the development was only for your pleasure.